At one's own expense The company believes that the training content belongs to the category of personal development, and employees need to bear the development expenses themselves. A three-month telecom training is usually a training plan for the telecom industry, aiming at providing new employees or experienced employees with necessary knowledge and skills. The period of free dance refers to a stage of dance development from the beginning of the 20th century to the middle of the 20th century, mainly in Europe and America.